描述
PLC在早期只是用来存储执行逻辑运算、顺序控制、定时、计数和运算等操作的指令;并通过数字输入和输出操作,来控制各类机械或生产过程。这种特性导致他一般用于较小的自控场所,且拓展性并不强。
ITE Gould Sz Size 5 Motor Starter A203G12 A20 120V NIB
Square D Mod 6 Sz Size 3 Fused MCC Bucket 100A 50HP
Square D Mod 6 Sz Size 3 Fused MCC Bucket 100A 50HP
TECO Westinghouse MA7200-4020-N1 27.4KVA 20 HP VS Drive
Fincor 6400 6406 20 HP Adjustable Frequency AC Drive 3P
General Electric GE THFP366 Disconnect Switch 600 Amp A
Maxon Shut-off Valve 4″ F 5000 CP 1 Natural Gas
Square D QMB3660-M Saflex Panelboard Switch 600 Amp A
Square D Sz Size 5 Reverse Motor Starter 8536SGO1 480V